In each of the following questions, two sentences I and II are given. Each sentence has a blank in it. Five words (1), (2), (3), (4) and (5) are suggested. Out of these, only one fits at both the places in the context of each sentence. Number of that word is the answer.

 I. Japan is investing in strengthening bonds with ASEAN countries and Japanese countries recently won a $ 370 million contract to start .......... a new underground railway system in Jakarta.

II. The cost of ........... space vehicles is high no doubt, but the costs of complying with legal and regulatory paperwork and rules is huge too.